Hi java, I’m use Blender too, its very fast and simple to make a model, you can convert your models with this tool:
Actually I’m working in a pack of vehicles and trains from South America(Brazil more specify),but first I’m modelling all vehicles to convert all and place on game later… share your progress with the your mod please:
My mod page:http://www.train-fever.com/forums/topic/south-america-trains-mod-pack/